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T2· OptimizationC+· EarlySupplementSupplements
Metabolic HealthCardiovascularImmune

C15:0 (Pentadecanoic Acid / Fatty15)

Research suggests C15:0 may support cellular membrane health and metabolic function as an essential odd-chain fatty acid.

Human Trials

2

102 participants

Risk Level

Low Risk

Monthly Cost

$30$60 /month

Based on typical 100mg daily dosing

Quick Facts

Category
Supplement
Research Field
Supplements
Evidence Grade
C+ – Early
Risk Level
Low
Monthly Cost
$30 – $60
Human Trials
2

Research Velocity

Emerging Field
8 publications in the last 12 months · limited publications – early-stage research

Mechanism of Action

C15:0 appears to function as an essential fatty acid that integrates into cellular membranes, particularly improving membrane stability and fluidity. Studies suggest it activates PPAR-alpha and PPAR-gamma receptors, potentially supporting metabolic health and cellular energy production. Research indicates it may also help maintain healthy inflammatory responses and support mitochondrial function.

Overview

Pentadecanoic acid (C15:0) is an odd-chain saturated fatty acid that research suggests may function as an essential nutrient. Unlike most dietary fats, C15:0 appears to have unique biological properties, with studies indicating it can integrate into cellular membranes and activate specific metabolic pathways. Research suggests that C15:0 levels have declined in human populations over recent decades, potentially due to reduced consumption of whole-fat dairy products, which are a primary dietary source.

Preliminary human studies indicate that C15:0 supplementation may support various aspects of metabolic health, including glucose metabolism and inflammatory markers. Animal and cell culture research suggests broader potential benefits for cellular aging, membrane stability, and mitochondrial function. The compound appears to work through multiple mechanisms, including activation of PPAR receptors and improvement of cellular membrane composition, though more extensive human trials are needed to fully understand its therapeutic potential.

As a relatively new area of research, C15:0 supplementation represents an emerging approach to nutritional optimization. While early findings are promising, the evidence base remains limited compared to more established supplements. The safety profile appears favorable based on available data, with C15:0 being a naturally occurring fatty acid found in various foods, though long-term supplementation studies are still needed.

Known Interactions

  • May enhance effects of diabetes medications due to potential glucose-lowering properties
  • Could theoretically interact with anticoagulant medications due to membrane effects
  • No significant drug interactions reported in available studies

Legal Status by Country

📍

Your country (United States)

OTC
✈️

Available without prescription in:

Australia, Brazil, Canada, Germany, Israel, Japan, Mexico, Netherlands, South Korea, Switzerland, Turkey, UAE, United Kingdom, United States, China, Colombia, India, Panama, Russia, Thailand

Australia
OTC
✈️Brazil
OTC
Canada
OTC
Germany
OTC
✈️Israel
OTC
Japan
OTC
✈️Mexico
OTC
Netherlands
OTC
✈️South Korea
OTC
Switzerland
OTC
✈️Turkey
OTC
✈️UAE
OTC
United Kingdom
OTC
📍United States
OTC
China
Unregulated
✈️Colombia
Unregulated
✈️India
Unregulated
✈️Panama
Unregulated
Russia
Unregulated
✈️Thailand
Unregulated

📍 = your selected country · ✈️ = medical tourism destination · Always verify current local regulations before travel.

Key Research

Last verified: 2026-03-19